This essay undertakes a radical criticism of legalist ideologies through a pluralist revision of the sources of law. Literary texts –specifically, the Harry Potter series of novels– are catalogued as sources of law. For this purpose, the law inscribed in fictional narrative worlds is considered as a matter that concerns the law in the real-world and the lives of audiences who read such fictional worlds. Law is literature and literature is law. On this basis, the article analyzes from a republican perspective the fictionalization of the rule of law in the Potter novels.